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Worldwide, areas affected by drought and water scarcity are increasing rapidly. Thus, nutrient-rich wastewater has become a valuable resource for farmers. Over 20 million hectares (10% of irrigated land) are irrigated with untreated, partially treated, diluted or treated wastewater. Over 200 million farmers in 44 countries recover daily over 15 million m(3) of treated wastewater for irrigation. High chemical oxygen demand (COD) and biochemical oxygen demand (BOD), heavy metals, nutrients, antibiotics and pathogenic bacteria pose risks for human health and the environment, and high suspended solids can affect the irrigation system. In Romania, large agricultural area is affected by drought and deficient irrigation systems. There is potential for wastewater reuse in agriculture, but different wastewater treatment for agricultural reuse is only tested experimentally. Wastewater samples collected from the lagoon of a cattle farm were tested to determine the microbiological load (total coliforms, faecal coliforms, faecal streptococci) and physico-chemical parameters (pH, turbidity, conductivity, COD, BOD, total N, total P) before and after applying advanced electrochemical treatment. The aim is to reduce wastewater load and to obtain an effluent that can be safely used for irrigation of energy crops in arid, semiarid and sub-humid - dry regions. Removal efficiencies were 59.8% for COD, 82% for BOD, 23.7% for total N and 46.9% for total P.